[DocDolittle]

Volunteering and getting a job only enables and helps them, it does absolutely no harm. You could talk to the manager, but he could be stubborn and pig-headed. I highly doubt that anyone would bother with the care sheets. I suggest what Theresa said to do, just try to keep the customers there as informed as possible. Also, try to spread the word around your town that Petco is bad, as since the town is small, it should be easy to spread it around.